Product Features: Made of high quality high speed steel for long life and exceptionally precise cuts the first time, saving you energy and stress. A valuable addition to any woodworker's rotary tool, suitable for most rotary tools including DREMEL, Craftsman, Chicago and more. Suitable for most woods, made from high quality carbide for a precise and easy cutting experience. 20 pieces of the most commonly used types of cutters including straight, trim, V-groove, beading, cove, slot cutter and more to meet your different needs. Ideal for all types of detail work. Capable of engraving on a wide range of materials including: wood, ABS, acrylic, PVC, plastic, etc. Suitable for detailed work, such as building and sanding dollhouse furniture, model trains or model buildings and airplanes. User-friendly design and easy insertion process for longer life, incredibly easy to use. Accessories for precision work on wood, 1/8 & quot; carbide engraving bits single flute replacements for your CNC machines. Product Specifications: Material: High Speed Steel (HSS) Shank: 3.17mm Package Includes: 1 Set of 10 Carbide Engraving Bits 1 Set of 10 Wood Router Bits Made of high quality high speed steel for long life and exceptionally precise cuts the first time, saving you energy and stress. 20 pieces of the most commonly used types of cutters, including straight, trim, V-groove, beading, cove, grooving cutter and more to meet your different needs. A valuable addition to any woodworker's rotary tool, suitable for most rotary tools